XSLT Custom filter function

[Nasko26]

Hello,

I need some help here, please.
I want to implement a custom XSLT function to filter a list of people. It is supposed to make a simple comparison and output the ones matching the filter but it is not working properly.

Thanks in advance!

Here are my files:
----------
person.xml
----------

Code: Select all

<?xml version="1.0" encoding="ISO-8859-1"?>

<?xml-stylesheet type="text/xsl" href="person.xsl"?>

<!DOCTYPE person_list SYSTEM "validator.dtd">



<person_list>

	<person id="1" name="John Smith">

		<age>35</age>

		<height units="cm">173</height>

		<weight units="kg">75</weight>

	</person>

	<person id="2" name="Tom Stone">

		<age>26</age>

		<height units="cm">177</height>

		<weight units="kg">65</weight>

	</person>

	<person id="3" name="Mark Glennford">

		<age>17</age>

		<height units="cm">181</height>

		<weight units="kg">61</weight>

	</person>

</person_list>

----------
person.xsl
----------

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<?xml version="1.0" encoding="ISO-8859-1"?>

<xsl:stylesheet version="2.0" 

  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"

  xmlns:my="http://www.mysite.com/my">



  <xsl:function name="my:age">

    <xsl:param name="age"/>



	<xsl:for-each select="person_list/person">

      <xsl:if test="age > $age">

        <!-- code to display data: age, height, weight-->

      </xsl:if>

    </xsl:for-each>

  </xsl:function>



<xsl:template match="/">

	<xsl:value-of select="my:age(18)"/><!-- isn't it supposed to output the data for person with ids "1" and "2"? -->

</xsl:template>



</xsl:stylesheet>

[adrian]

Hello,

You could use a template instead of a function so you would also have the context:

Code: Select all

<?xml version="1.0" encoding="ISO-8859-1"?>

<xsl:stylesheet version="2.0"

    xmlns:xsl="http://www.w3.org/1999/XSL/Transform"

    xmlns:my="http://www.mysite.com/my">

    

    <xsl:template name="my:age">

        <xsl:param name="age"/>

        <xsl:for-each select="person_list/person">

            <xsl:if test="age > $age">

                <!-- code to display data: age, height, weight-->

            </xsl:if>

        </xsl:for-each>

    </xsl:template>

    

    <xsl:template match="/">

        <xsl:call-template name="my:age">

            <xsl:with-param name="age">18</xsl:with-param>

        </xsl:call-template>

        <!-- isn't it supposed to output the data for person with ids "1" and "2"? -->

    </xsl:template>

    

</xsl:stylesheet>

Regards,
Adrian